Marsh by Andrew Chung

We saw the cat tail in the Edmonds marsh. I believe that the ecological role of the cat tail is to filter the water as new water is introduced into the marsh. It gets rid of chemicals that may be harmful to other organisms. It can also be habitats for animals such as ducks and small organisms. The most interesting organism that I saw was probably the heroin. I did not know that marshes were home to many different organisms. I thought it was mainly just for birds. One question that I had was why do cat tails have the bushy top?